BRMF55
Description
Optical master unit, 19″ 4U rackmount design, up to 32 remotes
This TETRA master repeater is intended for use to convert signals from RF to optical and supply the remote optical slave repeaters. Typical applications are: long tunnel sections, in-building systems, large area outdoor coverage and long distance feed areas where the cost of the traditional RF cable is more expensive than the economical optical fiber solutions.
Using WDM (Wavelength Division Multiplex) technology the uplink and downlink signals are going on he same optical cable. The same optical cable is used for the remote supervision and alarm handling functions, which results a reliable control of communication link. All the slaves (including theirs optional external alarms) and the master unit can controlled through the master unit with a direct connection or by the
help of one GSM modem.
Star or daisy chain configuration
Up to 32 slaves support with external optical splitters
Remote supervision of all slave units
WDM technology (Optical Wavelength Division Multiplexer)
Automatic optical power control
Supports both medium & macro slaves
SNMP support
Characteristics
| Parameter | Value |
| Frequency band, Duplex spacing, Bandwidth (MHz) | 380-400, DUX=10, LB=5 400-430, DUX=10, LB=5 450-470, DUX=10, LB=5 |
| Type | Master unit |
| Number of remote units | Up to 16 with basic rack
Up to 32 with 8 external optical splitters |
| Gain | from -50 to -20 db |
| Max RF Input power | +10 dbm |
| Max optical loss | 15 dbo |
| Optical connectors | FC/APC (optional SC/A) |
| RF connectors | N-female |
| Power consumption | up to 74W |
| Power Supply | +48 VDC or 220VAC |
| Dimensions (HxWxD) | 19″ x 4U x 400 mm |
| Weight | 15 kg |
| Operating temperature range | -0°C to +45°C |
| SNMP | Yes / v.2 |
| Encapsulation | IP20 |
